LS - 1st and 2nd Gen (1990-2000) Discussion topics related to the 1990 - 2000 Lexus LS400

LS 400 How to replace transmission solenoid??

Thread Tools
 
Search this Thread
 
Old 03-09-19, 11:22 AM
  #16  
jaaa
Lead Lap
 
jaaa's Avatar
 
Join Date: Jul 2015
Location: Colorado
Posts: 707
Received 60 Likes on 53 Posts
Default


Originally Posted by Banshee365
Well done on the trans R&R jaaa. That's not an easy job for anyone to do by themselves. If you were having a big leak from the converter seal you really have to replace the seal AND converter. The sealing surface on the converter is usually grooved and will forever leak with a new seal. The input seal is also pretty fun to replace with the pump in the trans as the input shaft is stuck through it. You have to get creative with pulling the seal out and be very careful not the mar any of the soft aluminum on the pump. Personally, if I were to replace the seal on a known good trans, I would remove the pump and disassemble it to drive the seal out from the rear. I could do that much faster than replacing the seal as it sits in the trans all together.

That is interesting about the bearings. Those bearings are very very hard. I haven ever seen them damaged. You would almost have to run it in a lack of fluid situation for a while. How far down into the case did you go and which bearing(s) did you find burnt?
Looks like I made a good call then on not trying to replace that seal. I went online and found a couple people who had attempted this repair- with both of them being unsuccessful. I went to a couple transmission shops and they wanted $1500 just for the rebuild. I was losing a saucer plate sized spot of oil on the ground every time I drove it, so it had to be fixed. And yes, this was the biggest job I've ever done on my driveway. I once pulled the back end of a transfer case off and repaired a leak on my suv, but this was much harder. As to the bearing(and to be truthfull-I'm not sure it was a bearing-it's been a year and a half now) I remember it was on just the other side past the torque converter. I remember seeing a blueish color that to me looked like it had been overheated.
Late edit: here is a picture from your tutorial where I saw much worse of a scorched blue color

Last edited by jaaa; 03-09-19 at 11:45 AM.
The following users liked this post:
LS400FAN (03-11-19)
Old 03-09-19, 07:08 PM
  #17  
Banshee365
Instructor
 
Banshee365's Avatar
 
Join Date: Nov 2006
Location: FL
Posts: 971
Received 97 Likes on 80 Posts
Default

Originally Posted by jaaa



Looks like I made a good call then on not trying to replace that seal. I went online and found a couple people who had attempted this repair- with both of them being unsuccessful. I went to a couple transmission shops and they wanted $1500 just for the rebuild. I was losing a saucer plate sized spot of oil on the ground every time I drove it, so it had to be fixed. And yes, this was the biggest job I've ever done on my driveway. I once pulled the back end of a transfer case off and repaired a leak on my suv, but this was much harder. As to the bearing(and to be truthfull-I'm not sure it was a bearing-it's been a year and a half now) I remember it was on just the other side past the torque converter. I remember seeing a blueish color that to me looked like it had been overheated.
Late edit: here is a picture from your tutorial where I saw much worse of a scorched blue color
That blueing is from the manufacturing process, namely hardening.
Old 03-09-19, 07:14 PM
  #18  
jaaa
Lead Lap
 
jaaa's Avatar
 
Join Date: Jul 2015
Location: Colorado
Posts: 707
Received 60 Likes on 53 Posts
Default

LOL, well I did say I knew nothing about transmissions.
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
LexusFL
LS - 1st and 2nd Gen (1990-2000)
17
10-10-22 04:17 AM
hermansen
LS - 1st and 2nd Gen (1990-2000)
2
07-27-18 10:49 PM
jaxscuby
LS - 1st and 2nd Gen (1990-2000)
11
06-25-16 07:44 AM
JDMFreak
LS - 1st and 2nd Gen (1990-2000)
10
10-29-05 12:46 PM



Quick Reply: LS 400 How to replace transmission solenoid??



All times are GMT -7. The time now is 03:15 PM.